Managing crosstalk in DSL system

摘要

Methods, systems, and apparatus for crosstalk avoidance in a telecommunications network are disclosed. In one aspect a method includes determining, by a network element and for each vectoring group from multiple vectoring groups, a transmission load of the vectoring group based on transmission loads of links within the vectoring group; identifying, by the network element, a resource allocation interval (RAI) that is shared by the multiple vectoring groups; determining, based on the transmission load of each vectoring group and by the network element, a first portion of the RAI that will be a normal operation interval (NOI) and a second portion of the RAI that will be a discontinuous operation interval (DOI); transmitting, by the network element, data over all of the multiple vectoring groups during at least a portion of the NOI; and transmitting, by the network element, data over fewer than all of the vectoring groups during the entire DOI.

主权项

1. A method comprising:
determining, by a network element and for each vectoring group from a plurality of vectoring groups, a transmission load of the vectoring group based on transmission loads of links within the vectoring group; identifying, by the network element, a resource allocation interval (RAI) that is shared by the plurality of vectoring groups; determining, based on the transmission load of each vectoring group and by the network element, a first portion of the RAI that will be a normal operation interval (NOI) and a second portion of the RAI that will be a discontinuous operation interval (DOI); transmitting, by the network element, data over all of the plurality of vectoring groups during at least a portion of the NOI; and transmitting, by the network element, data over fewer than all of the vectoring groups during the entire DOI, wherein data from at least two different vectoring groups are separately transmitted during at least two non-overlapping portions of the DOI, and wherein a transmission rate of data transmitted by a particular vectoring group during the DOI is higher than a transmission rate of data transmitted by the particular vectoring group during the NOI.